Definition that contains orch
- overture orchestral music played at the beginning of an opera or oratorio
- chatterbox orchid growing along streams or ponds of western North America having leafy stems and 1 greenish-brown and pinkish flower in the axil of each upper leaf
- epidendrum tampense orchid of Florida and the Bahamas having showy brightly colored flowers; sometimes placed in genus Epidendrum
- lesser twayblade orchid having two triangular leaves and a short lax raceme of green to rust-colored flowers with the lip flushed mauve; Europe and Asia and North America and Greenland
- hexalectris warnockii orchid with slender nearly leafless reddish-brown stems with loose racemes of reddish-brown flowers; of open brushy woods of southeastern Arizona and central Texas
- bog rein orchid orchid with spikes of many fragrant white flowers on erect leafy stems; of wet or boggy ground through most of the West and northern North America
- tongue-flower orchid having blue to purple flowers with tongue-shaped or strap-shaped protuberances (calli) at the lip base
- psychopsis papilio orchid of South America and Trinidad having large yellow and reddish-brown flowers; sometimes placed in genus Oncidium
- epipactis gigantea orchid growing along streams or ponds of western North America having leafy stems and 1 greenish-brown and pinkish flower in the axil of each upper leaf
- purple fringeless orchid orchid of northeastern and alpine eastern North America closely related to the purple fringed orchids but having rosy-purple or violet flowers with denticulate leaf divisions